
A cold front will cross the Great Lakes and Northeast U.S. through today with gusty winds and areas of rain showers. A strong atmospheric river is then expected to move into the Northwest by midweek bringing a threat for moderate to heavy rainfall and flooding, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >
In the United States new 30-year normals are calculated every ten years. The most recent normals (using 1991-2020 data) are listed below, along with the previous set of normals (from 1981-2010), and the difference between the two normals packages. Click on the images to see larger versions.
Or, click here to see comparisons between the new normals and the previous (1981-2010) set of normals in graphical format for local cities (BWG, FFT, LEX, SDF, LOU).
TEMPERATURE
| ANNUAL | ||||||||
| 1991-2020 | Difference Between Old and New | 1981-2010 | ||||||
| Mean | Maximum | Minimum | Mean | Maximum | Minimum | Mean | Maximum | Minimum |
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| SEASONAL | |||||||||
| 1991-2020 | Difference Between Old and New | 1981-2010 | |||||||
| Mean | Maximum | Minimum | Mean | Maximum | Minimum | Mean | Maximum | Minimum | |
| Spring | ![]() |
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| Summer | ![]() |
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| Autumn | ![]() |
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| Winter | ![]() |
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PRECIPITATION
| ANNUAL | |||
| Difference Between Old and New | |||
| 1991-2020 | Percentage Change | Value Difference | 1981-2010 |
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| SEASONAL | ||||
| Difference Between Old and New | ||||
| 1991-2020 | Percentage Change | Value Difference | 1981-2010 | |
| Spring | ![]() |
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| Summer | ![]() |
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| Autumn | ![]() |
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| Winter | ![]() |
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| MONTHLY | ||||
| Difference Between Old and New | ||||
| 1991-2020 | Percentage Change | Value Difference | 1981-2010 | |
| January | ![]() |
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| February | ![]() |
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| March | ![]() |
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| April | ![]() |
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| May | ![]() |
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| June | ![]() |
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| July | ![]() |
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| August | ![]() |
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| September | ![]() |
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| October | ![]() |
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| November | ![]() |
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| December | ![]() |
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DEW POINT
The following maps are from the PRISM Climate Group at Oregon State University
| January | February | March | April |
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| May | June | July | August |
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| September | October | November | December |
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